datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,05 0:30:00,31 ,       0,0.438975,0.044965,0.114909
sgpcmbeC1.c1,2005,05 1:30:00,31 ,       0,0.199546,0.024151,0.057192
sgpcmbeC1.c1,2005,05 2:30:00,31 ,       0,0.273904,0.012615,0.050649
sgpcmbeC1.c1,2005,05 3:30:00,31 ,       0,0.113921,0.003723,0.020454
sgpcmbeC1.c1,2005,05 4:30:00,31 ,       0,0.035651,0.001523,0.006551
sgpcmbeC1.c1,2005,05 5:30:00,31 ,0.002436,12.02523,2.905747,3.801447
sgpcmbeC1.c1,2005,05 6:30:00,31 ,0.053802,59.04451,24.06818,22.30282
sgpcmbeC1.c1,2005,05 7:30:00,31 ,0.176344,120.9987,41.51083,31.76594
sgpcmbeC1.c1,2005,05 8:30:00,31 ,0.350118, 151.914,46.12218,35.13639
sgpcmbeC1.c1,2005,05 9:30:00,31 ,0.193679,188.7433,  67.903,58.22177
sgpcmbeC1.c1,2005,0510:30:00,30 ,0.510339, 289.714,92.29292,86.99052
sgpcmbeC1.c1,2005,0511:30:00,31 ,0.672964,322.1498,84.88154,83.23364
sgpcmbeC1.c1,2005,0512:30:00,31 ,0.149928,517.3319,104.1631,118.9364
sgpcmbeC1.c1,2005,0513:30:00,31 ,0.368918,324.7102,88.85121,98.07168
sgpcmbeC1.c1,2005,0514:30:00,31 ,       0,294.7662,102.8666,101.9575
sgpcmbeC1.c1,2005,0515:30:00,31 ,       0,255.4773,85.04415,72.98905
sgpcmbeC1.c1,2005,0516:30:00,31 ,       0,201.1173,70.44991,57.25369
sgpcmbeC1.c1,2005,0517:30:00,31 ,0.008898,133.4407,49.26369,31.66675
sgpcmbeC1.c1,2005,0518:30:00,31 ,       0,63.51945,28.54591,17.38944
sgpcmbeC1.c1,2005,0519:30:00,31 ,       0,11.74811,2.557568,3.215671
sgpcmbeC1.c1,2005,0520:30:00,31 ,       0,0.214002,0.034382,0.064108
sgpcmbeC1.c1,2005,0521:30:00,31 ,       0,0.231588,0.029818, 0.07235
sgpcmbeC1.c1,2005,0522:30:00,31 ,       0,0.257268, 0.03124,0.071211
sgpcmbeC1.c1,2005,0523:30:00,31 ,       0,0.284872,0.047325,0.094886